package com.wenyu.wenyuyuedu.utils;

import java.util.regex.Pattern;

/**
 * Created by Administrator on 2017/4/1.
 * 过滤html
 */

public class DeleteHtml {
    //去掉文本中的html标签

    public static class HtmlText {
        public static String Html2Text(String inputString) {
            String htmlStr = inputString;
            String textStr = "";
            java.util.regex.Pattern p_script;
            java.util.regex.Matcher m_script;
            java.util.regex.Pattern p_style;
            java.util.regex.Matcher m_style;
            java.util.regex.Pattern p_html;
            java.util.regex.Matcher m_html;

            java.util.regex.Pattern p_html1;
            java.util.regex.Matcher m_html1;

            try {
                String regEx_script = "<[\\s]*?script[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?script[\\s]*?>"; // 定义script的正则表达式{或<script[^>]*?>[\\s\\S]*?<\\/script>

                String regEx_style = "<[\\s]*?style[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?style[\\s]*?>"; // 定义style的正则表达式{或<style[^>]*?>[\\s\\S]*?<\\/style>
                String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式
                String regEx_html1 = "<[^>]+";
                p_script = Pattern.compile(regEx_script,
                        Pattern.CASE_INSENSITIVE);
                m_script = p_script.matcher(htmlStr);
                htmlStr = m_script.replaceAll(""); // 过滤script标签

                p_style = Pattern
                        .compile(regEx_style, Pattern.CASE_INSENSITIVE);
                m_style = p_style.matcher(htmlStr);
                htmlStr = m_style.replaceAll(""); // 过滤style标签

                p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);
                m_html = p_html.matcher(htmlStr);
                htmlStr = m_html.replaceAll(""); // 过滤html标签

                p_html1 = Pattern
                        .compile(regEx_html1, Pattern.CASE_INSENSITIVE);
                m_html1 = p_html1.matcher(htmlStr);
                htmlStr = m_html1.replaceAll(""); // 过滤html标签

                textStr = htmlStr;

            } catch (Exception e) {
                System.err.println("Html2Text: " + e.getMessage());
            }

            return textStr;// 返回文本字符串
        }
    }
}
